Omd restore fails, previous version needed

Hi Dennis

I am running centos 8.2 I start out with

[root@apollo-test ~]# omd versions
1.6.0p17.cre (default)

I backup the site, install p18 and update the site

[root@apollo-test tmp]# omd versions
1.6.0p17.cre
1.6.0p18.cre (default)

I then do an omd clean up to get rid of p17

[root@apollo-test tmp]# omd cleanup
1.6.0p17.cre Uninstalling
1.6.0p18.cre In use (by test). Keeping this version.
[root@apollo-test tmp]# omd versions
1.6.0p18.cre (default)

Now I try to restore the backup

[root@apollo-test tmp]# omd restore test /tmp/backup.tgz
You need to have version 1.6.0p17.cre installed to be able to restore this backup.

Is this a bug with CRE if you did not experience this with CEE?